SP 10×50 Porro Prism Binoculars

PRODUCT FEATURES

• BAK4 Porro Prisms
• Fully Multicoated Optics
• Wide Angle of View: 64°
• Closed Bridge Configuration
• Slip-Resistant Rubberised Armouring
• Centre Focusing
• Tripod Mountable
• Fold Down Eyecups

OVERVIEW

Designed for both astronomical and terrestrial use, Pentax’s 10×50 SP Binocular features large oversized fully multicoated 50mm objectives to reduce reflection and maximize light transmission through the entire optical path. Utilizing the traditional porro prism configuration gives scenes a rich depth of view for an immersive observation experience and provides a comfortable feel in the hand with a lot of surface area to maintain a sure grip. The large objectives and coatings maximize the amount of light getting to the user’s eyes for exceptional low-light capabilities, and its high 10x magnification provides an immersive observation experience whether users are bird watching or comet hunting.

The binocular sports a generous 13mm eye relief and the fold-down eyecups seal against the ocular cavity to block stray peripheral light which can dim images. Its over-sized objectives add weight and bias the centre of gravity forward making user fatigue a concern and hand-shake a possibility, so to aid long observation sessions the binocular can be mounted on a tripod using an optional adapter.

Optical Performance

• 10x magnification
• 50mm objective lenses
• BAK4 Porro prism optical path
• Anti-reflection fully multicoated optics
• 341.3” field of view at 1000 yards
• 64° angle of view

Use and Handling

• Closed bridge configuration
• Large knurled center focus wheel
• Right-eye diopter adjustment
• 13mm eye relief, 5.0mm exit pupil
• Fold-down rubber eyecups seal against ocular cavity and block stray peripheral light

Construction Details

• Rubberised armouring protects against impacts and provides slip-resistant grip
• Tripod mountable with optional adapter

SPECIFICATIONS

Prism Type Porro
Magnification 10x
Objective Lens Diameter 50 mm
Angle of View 6.4° (actual)
Field-of-View 341.3′ @ 1000 yd / 113.31 m @ 1000 m
Minimum Focus Distance 29.7′ / 9.05 m
Exit Pupil Diameter 5.0 mm
Eye Relief 13 mm
Focus Type Center
Tripod Mount Yes (Adapter Optional)
Dimensions 7.8 x 6.5 x 2.3″ / 19.81 x 16.51 x 5.84 cm
Weight 32 oz / 907.20 g